The Dutch ace has been revelation this season.
And Redknapp revealed to Absolute Radio: "I spoke to Daniel about loaning him, and we spoke about loaning the player, so he said 'Look, we can do a loan deal for Van Der Vaart'. So I said 'Yeah, great, if we can get him on loan it would be brilliant, we'll take him on loan'.
"Then he come back about an hour later, he said 'Look, I've got a present for you, a surprise'. I said 'Oh great', you know, I thought 'Oh here we go, maybe he's going to that old Mondeo, its done 140,000 miles', I thought he was going to change it for me, its worth about £240. He said 'No, I've bought Van Der Vaart', so I said 'Oh, great', you know.
"Yeah, he's a good player. Yeah, he is a good player, very good footballer."
Listen to Man City v West Brom this Saturday 5th February Absolute Radio extra - on DAB Digital Radio, 1215AM and online in the UK from 1.30pm as programming kicks off with Russ Williams for pre-match build up, followed by full live commentary from Jim Proudfoot at 3pm, while Arsenal legend and Ian Wright takes care of post match analysis at 5pm featuring player and manager interviews, fan phone ins and a healthy supply of banter.
For more go to absoluteradio.co.uk/football.